Question: Find the surface area of a sphere with a radius of 6 units.
+
Find the absolute extrema of the function f(x) = x^3 - 3x^2 on the interval [0, 2].
+
Find the distance from the center of an ellipse with semi-major axis length 6 and semi-minor axis length 4 to points on the ellipse at angles of 45 degrees and 135 degrees.